Middle Atlantic A24BP 24RU Boxed Backpan for DWR and SR Series
Overview
The Middle Atlantic A24BP is a 24RU replacement or spare backpan engineered specifically for DWR and SR series wall-mount enclosures. At 42 inches tall and built from steel with a black e-coat finish, this forward rackrail backpan gives integrators a reliable structural foundation for mounting rack equipment inside Middle Atlantic DWR and SR enclosures — whether you're building out a new enclosure from a shell or replacing a damaged panel in the field. The A24BP ships boxed at just 5 lbs, making it straightforward to stage and transport to job sites.
If you're specifying a rack accessory to complete or restore a DWR or SR enclosure, the A24BP is a direct-fit component — no fabrication, no adaptation required. It's a purpose-built part for a specific enclosure family, which matters when you're working against a commissioning deadline and can't afford fitment surprises.
Key Features
- 24 RU Capacity: 24 rack units of usable mounting depth accommodates a dense mix of security appliances, patch panels, and power distribution — enough vertical space to fully outfit a mid-size wall enclosure without stacking enclosures.
- 42-Inch Panel Height: The 42 in (106.7 cm) overall height matches the internal structure of DWR and SR series enclosures exactly, so the backpan drops in without field cutting or shimming. Dimensional accuracy here prevents the alignment issues that plague aftermarket substitutes.
- Forward Rackrail Design: The forward rackrail orientation positions equipment closer to the front of the enclosure, preserving rear clearance for cable management and airflow behind mounted gear — a real benefit when you're running structured cabling or power distribution in tight wall-mount conditions.
- Steel Construction with Black E-Coat Finish: The all-steel build provides the rigidity needed to hold populated rack equipment without flex under load. The black e-coat finish resists corrosion and surface wear — relevant in utility closets and mechanical rooms where humidity and airborne particulates are a factor.
- DWR and SR Series Compatibility: This backpan is designed exclusively for the DWR and SR base series. If you're sourcing components for a wall-mount rack project, matching the backpan to the enclosure series eliminates guesswork on hole patterns, rail spacing, and panel attachment points.
- 5 lb Shipping Weight: At 5 lbs (2.3 kg) boxed, the A24BP is a one-person lift for installation or staging. That matters on elevated wall mounts where a second pair of hands just to manage component weight adds unnecessary labor time.
Integration & Compatibility
The A24BP is compatible with Middle Atlantic DWR and SR series enclosures. Before ordering, confirm your enclosure series and RU count — Middle Atlantic produces backpans in multiple RU configurations, and substituting an incorrect RU size will result in misaligned rail holes. The forward rackrail design integrates with standard 19-inch rack equipment following EIA-310 spacing, so any standard rack-mount device will seat correctly once the backpan is installed in a compatible enclosure.
For integrators building out complete wall-mount systems, pair this backpan with compatible rack power distribution units and cable management accessories to maximize the 24 RU of available space. The steel construction handles the static load of fully populated rack equipment without requiring additional bracing inside the enclosure.
Frequently Asked Questions
Q: What enclosure series is the A24BP designed for?
A: The A24BP is designed specifically for Middle Atlantic DWR and SR series enclosures. It is not a universal-fit backpan — confirm your enclosure series before ordering.
Q: What is the rack unit capacity of the A24BP?
A: The A24BP provides 24 rack units (RU) of mounting space, with an overall panel height of 42 inches (106.7 cm).
Q: What type of rackrail does the A24BP use?
A: The A24BP uses a forward rackrail configuration, which positions mounted equipment toward the front of the enclosure to preserve rear clearance for cabling and airflow.
Q: What material is the A24BP constructed from?
A: The A24BP is constructed from steel with a black e-coat finish, providing structural rigidity and corrosion resistance.
Q: How much does the A24BP weigh?
A: The A24BP ships at 5 lbs (2.3 kg) boxed.
Q: Can the A24BP be used as a replacement panel for an existing DWR or SR enclosure?
A: Yes. The A24BP is designed as both a new-build component and a field-replaceable backpan for existing DWR and SR series enclosures. It is a direct-fit replacement that requires no modification.
The A24BP is the part you order when you need the enclosure to be right, not close. The 24 RU forward rackrail backpan is purpose-matched to the DWR and SR series, which means the rail holes line up, the panel seats flush, and you're not shimming anything on the wall. I've seen integrators try to substitute generic backpans in these enclosures — the hole patterns don't align and you lose half a day on a fitment problem that didn't need to exist.
Technical Highlights:
- 24 RU / 42 in height: Full-height 42-inch panel fills the DWR/SR enclosure interior completely, giving you all 24 RU without dead space at the top or bottom of the rack.
- Forward rackrail orientation: Shifts the equipment plane toward the door, leaving rear clearance for cable management — critical when you're running CAT6 home-runs and power distribution behind a fully populated panel.
- Steel e-coat construction: The black e-coat finish isn't cosmetic — it's a corrosion barrier for the closet and mechanical room environments where these enclosures typically live.
Deployment Considerations:
- Verify your enclosure is DWR or SR series before ordering — Middle Atlantic makes backpans in multiple RU configurations and the A24BP is spec'd for 24 RU only. A 16 RU or 32 RU enclosure needs its own matched backpan.
- At 5 lbs the panel is a single-person install on the bench, but plan your wall-mount sequence before the enclosure goes up — retrofitting a backpan into an already-mounted enclosure in a confined closet adds unnecessary complexity.
This is the right component for commercial AV and security integrators building out wall-mount rack systems in server closets, IDF rooms, or access control head-end locations where a properly structured Middle Atlantic DWR or SR enclosure is the specified backbone.
